Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable ============================= WARNING: suspicious RCU usage 4.15.0-rc1+ #203 Not tainted ----------------------------- ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor3/11262: #0: (sk_lock-AF_INET6){+.+.}, at: [<000000006df2b93f>] lock_sock include/net/sock.h:1465 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<000000006df2b93f>] do_ipv6_setsockopt.isra.9+0x238/0x39c0 net/ipv6/ipv6_sockglue.c:167 netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. stack backtrace: CPU: 0 PID: 11262 Comm: syz-executor3 Not tainted 4.15.0-rc1+ #203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4675 ireq_opt_deref include/net/inet_sock.h:135 [inline] inet_csk_route_req+0x82a/0xca0 net/ipv4/inet_connection_sock.c:544 dccp_v4_send_response+0xa7/0x640 net/dccp/ipv4.c:485 dccp_v4_conn_request+0x9f4/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1350 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xeb/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x81a/0x9b0 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:911 [inline] __release_sock+0x124/0x360 net/core/sock.c:2264 release_sock+0xa4/0x2a0 net/core/sock.c:2779 do_ipv6_setsockopt.isra.9+0x4fb/0x39c0 net/ipv6/ipv6_sockglue.c:897 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:921 dccp_setsockopt+0x85/0xd0 net/dccp/proto.c:568 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1851 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1830 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x4529d9 RSP: 002b:00007f19579bec58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 00000000004529d9 RDX: 0000000000000020 RSI: 0000000000000029 RDI: 0000000000000014 RBP: 000000000000032e R08: 0000000000000020 R09: 0000000000000000 R10: 0000000020de8fe0 R11: 0000000000000212 R12: 00000000006f1cf0 R13: 00000000ffffffff R14: 00007f19579bf6d4 R15: 0000000000000000 ============================= WARNING: suspicious RCU usage 4.15.0-rc1+ #203 Not tainted ----------------------------- ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor3/11262: #0: (sk_lock-AF_INET6){+.+.}, at: [<000000006df2b93f>] lock_sock include/net/sock.h:1465 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<000000006df2b93f>] do_ipv6_setsockopt.isra.9+0x238/0x39c0 net/ipv6/ipv6_sockglue.c:167 stack backtrace: CPU: 0 PID: 11262 Comm: syz-executor3 Not tainted 4.15.0-rc1+ #203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4675 ireq_opt_deref include/net/inet_sock.h:135 [inline] dccp_v4_send_response+0x4b0/0x640 net/dccp/ipv4.c:496 dccp_v4_conn_request+0x9f4/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1350 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xeb/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x81a/0x9b0 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:911 [inline] __release_sock+0x124/0x360 net/core/sock.c:2264 release_sock+0xa4/0x2a0 net/core/sock.c:2779 do_ipv6_setsockopt.isra.9+0x4fb/0x39c0 net/ipv6/ipv6_sockglue.c:897 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:921 dccp_setsockopt+0x85/0xd0 net/dccp/proto.c:568 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1851 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1830 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x4529d9 RSP: 002b:00007f19579bec58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 00000000004529d9 RDX: 0000000000000020 RSI: 0000000000000029 RDI: 0000000000000014 RBP: 000000000000032e R08: 0000000000000020 R09: 0000000000000000 R10: 0000000020de8fe0 R11: 0000000000000212 R12: 00000000006f1cf0 R13: 00000000ffffffff R14: 00007f19579bf6d4 R15: 0000000000000000 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=38529 sclass=netlink_route_socket pig=11356 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=38529 sclass=netlink_route_socket pig=11356 comm=syz-executor6 device gre0 entered promiscuous mode QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl SELinux: unrecognized netlink message: protocol=4 nlmsg_type=17 sclass=netlink_tcpdiag_socket pig=11472 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=17 sclass=netlink_tcpdiag_socket pig=11496 comm=syz-executor1 kauditd_printk_skb: 360 callbacks suppressed audit: type=1326 audit(1512165117.709:1692): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x7ffc0000 QAT: Invalid ioctl QAT: Invalid ioctl device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=4 nlmsg_type=33 sclass=netlink_tcpdiag_socket pig=11621 comm=syz-executor7 device lo entered promiscuous mode SELinux: unrecognized netlink message: protocol=4 nlmsg_type=33 sclass=netlink_tcpdiag_socket pig=11636 comm=syz-executor7 audit: type=1326 audit(1512165117.709:1693): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.709:1694): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=64 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.709:1695): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.709:1696): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.710:1697): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=55 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.710:1698): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.710:1699): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.711:1700): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=9 compat=0 ip=0x4529d9 code=0x7ffc0000 audit: type=1326 audit(1512165117.711:1701): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=11581 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x7ffc0000 device gre0 entered promiscuous mode NFS: bad mount option value specified: v; QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl NFS: bad mount option value specified: v; sctp: [Deprecated]: syz-executor4 (pid 11699) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor4 (pid 11699) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor2 (pid 11744) Use of int in maxseg socket option. Use struct sctp_assoc_value instead binder: 11736:11748 got reply transaction with bad transaction stack, transaction 57 has target 11736:0 binder: 11736:11748 transaction failed 29201/-71, size 88-24 line 2685 binder: BINDER_SET_CONTEXT_MGR already set binder: 11736:11748 ioctl 40046207 0 returned -16 binder_alloc: 11736: binder_alloc_buf, no vma binder: 11736:11748 transaction failed 29189/-3, size 0-0 line 2870 binder: 11736:11748 got reply transaction with no transaction stack binder: 11736:11748 transaction failed 29201/-71, size 88-24 line 2670 binder: undelivered TRANSACTION_ERROR: 29201 binder: release 11736:11748 transaction 57 out, still active binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 57, target dead sctp: [Deprecated]: syz-executor2 (pid 11770) Use of int in maxseg socket option. Use struct sctp_assoc_value instead device gre0 entered promiscuous mode APIC base relocation is unsupported by KVM binder: 11854:11858 ERROR: BC_REGISTER_LOOPER called without request binder: 11858 RLIMIT_NICE not set binder: 11854:11866 BC_FREE_BUFFER u0000000000000000 no match binder: 11854:11866 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 11854:11866 BC_ACQUIRE_DONE uffffffffffffffff no match binder: 11854:11866 transaction failed 29189/-22, size 40-8 line 2755 binder: 11854:11866 ioctl c0306201 20009fd0 returned -14 binder: 11854:11866 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 11854:11866 unknown command 0 binder: 11854:11866 ioctl c0306201 2000a000 returned -22 binder: 11854:11866 got reply transaction with no transaction stack binder: 11854:11866 transaction failed 29201/-71, size 32-8 line 2670 binder: 11854:11871 ERROR: BC_REGISTER_LOOPER called without request binder: 11871 RLIMIT_NICE not set binder: 11854:11871 BC_FREE_BUFFER u0000000000000000 no match binder: 11854:11871 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 11854:11871 BC_ACQUIRE_DONE uffffffffffffffff no match binder: 11854:11871 transaction failed 29189/-22, size 40-8 line 2755 binder: 11854:11866 transaction failed 29189/-22, size 9-0 line 2755 binder: 11854:11871 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 11854:11871 unknown command 0 binder: 11854:11871 ioctl c0306201 2000a000 returned -22 netlink: 2 bytes leftover after parsing attributes in process `syz-executor3'. device gre0 entered promiscuous mode netlink: 2 bytes leftover after parsing attributes in process `syz-executor3'. binder: undelivered TRANSACTION_ERROR: 29201 netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. device eql entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12043 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=9 nlmsg_type=32 sclass=netlink_audit_socket pig=12297 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=9 nlmsg_type=32 sclass=netlink_audit_socket pig=12312 comm=syz-executor5 device gre0 entered promiscuous mode netlink: 2 bytes leftover after parsing attributes in process `syz-executor4'. QAT: Invalid ioctl TCP: request_sock_TCP: Possible SYN flooding on port 20018. Sending cookies. Check SNMP counters. netlink: 2 bytes leftover after parsing attributes in process `syz-executor4'. QAT: Invalid ioctl QAT: Invalid ioctl syz-executor1 (12357): /proc/12357/oom_adj is deprecated, please use /proc/12357/oom_score_adj instead. QAT: Invalid ioctl print_req_error: I/O error, dev loop2, sector 0 Buffer I/O error on dev loop2, logical block 0, lost async page write SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12435 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12427 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12427 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12427 comm=syz-executor0 encrypted_key: master key parameter '0>ÏìÌtjû;£º©‡Óò¹eIà|‡˜Ãù} Ÿ{¥÷o' is invalid encrypted_key: master key parameter '0>ÏìÌtjû;£º©‡Óò¹eIà|‡˜Ãù} Ÿ{¥÷o' is invalid SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12435 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12447 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12435 comm=syz-executor0 RDS: rds_bind could not find a transport for 172.20.0.170, load rds_tcp or rds_rdma? kauditd_printk_skb: 431 callbacks suppressed audit: type=1326 audit(1512165123.741:2133): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=12454 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x0 netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. audit: type=1326 audit(1512165123.911:2134): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=12454 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x4529d9 code=0x0 netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. kvm [12521]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008f netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'.